Y. Zhu, Haidong Shen, Yanbin Liu, G. Zhang, Yuping Lu
{"title":"Optimal control and analysis for aero-elastic model of hypersonic vehicle","authors":"Y. Zhu, Haidong Shen, Yanbin Liu, G. Zhang, Yuping Lu","doi":"10.1109/CGNCC.2016.7829081","DOIUrl":null,"url":null,"abstract":"Considering strong coupling characteristics during flight, an integrated aero-propulsive/aero-elastic model of hypersonic vehicle is developed. The fuselage model is assumed as a free-free beam and finite element method is applied for flexible mode modeling. Then impact on the first three flexible modes of different bending stiffness are studied. Besides, frequency domain metrics: Bode integral and sensitivity bounds are analyzed under different bending stiffness. Finally, weighted H∞ suboptimal mixed sensitivity based controller is designed for the nonlinear flexible AHSV model. Simulation results show satisfactory response to the angle of attack tracking command and all states are asymptotically stable.","PeriodicalId":426650,"journal":{"name":"2016 IEEE Chinese Guidance, Navigation and Control Conference (CGNCC)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2016-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2016 IEEE Chinese Guidance, Navigation and Control Conference (CGNCC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CGNCC.2016.7829081","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
Considering strong coupling characteristics during flight, an integrated aero-propulsive/aero-elastic model of hypersonic vehicle is developed. The fuselage model is assumed as a free-free beam and finite element method is applied for flexible mode modeling. Then impact on the first three flexible modes of different bending stiffness are studied. Besides, frequency domain metrics: Bode integral and sensitivity bounds are analyzed under different bending stiffness. Finally, weighted H∞ suboptimal mixed sensitivity based controller is designed for the nonlinear flexible AHSV model. Simulation results show satisfactory response to the angle of attack tracking command and all states are asymptotically stable.